Harvey mccown



I. sy I "'z @zum @time Le-ters Patent .N 90,567, lltell May 25, 1869.

IMQROVEMENT IN NUT-LOCK;

The Sehedule referred to in these Letters Patent and :leaking part of the same.

Figure 3 is z1- pizui view ot theloek-wusher detneheih-v Letters ot'like name und kind refer to like part-s in euch of the tignres.

liy'invention is :m improvement upon omit-:look

for which Letters Paten'hfNo. 87,953, were grzintedto me, Maz-reir 16, 18GB, und it consists of the peeulier forni oi' the loek-\\':isiier which pennits it to be used many times hei'ore becoming worthless.

In the annexed drawing-- A .A reptesent-the 'ends of two rails, and B B two clumps, forming the iish-joint, which are pinned upm Y at g, ney oe turned up so 'as t0 present the ends, l

opposite sides of said mils, und the wholeseeured togetherby menus'ofthuholts C C, &o., passing through sai-id elnmps :uid mils, euch bolt being pro- Avided with n nut, c, upon its end.

D represents :t washer, corresponding in width to the longest dizuneter et said nuts, und slightly longer than the distance between their outer corners, when both are placed diagonally to the line of the bolts, find which :washer is plneed beneath snid. Amts, suitable holes lneiug provided furthe pnssnge of the bolts.

lheends ofthe washer l) have :t diamond-slumped piece out therefrom, the point otwhieh isiuwzu'd, und just meets the corner oi` n nut placed diagonally, or with its longest' diameter in n line with the centres otthe bolts, ,leaving two parts to eneh end ofsnid washers l? d, which extend beyond the edges of snid nutsA to :i distance 'corresponding to the thickness of the'same, no that it' beutupwnrd nt n. right-angle, the upper edge of said pant or end would reach about to the topoof the nut, :is shown :it a: in iigs. l ond 2, :uid securely hold the saune vin platee-:uid prevent its tui-nizw.

It will he evident,however, that if' the whole of one et said pints d. were bent upward, but one-haii' would be of use in holding seid nut, as, in unserewino, that por tion oi' the side ol' said nut in the rear oft ie corners would leave Jthe wusher, while the portion in front ot' 'sn-id eorueis would press more and more against it.

In order, theretiu'e, to economize in theuse of the washer, each mii'tdvis slitted through the middle thereof, :is fair :is the linneo-,that one-half muy be turned up eneh'tiuie, wchieh, es hut slight. force is required, isresents :t sutlirient resistance to prevent the unt from turning, und pi-lioits sind washer to be used i'onr times, ns, nit-er oue-hnli`. of1 eueh o" said pieces is broken olf, hy reversing the sides of the washer, mi equal amount ot' use may be had. f

Wheunll of the parts dclzue broken olf, if the fmts nre placed with their edges parade-l to the line of the bolts, at y, 'the washer will project at its end and sides beyond the nut, so that yby slitting said washer interullyfrom its edge to or lbeyond the sides of the nut, as shown inthe drawing, the sides e c may be turned up, and,'with the 'pointf, furnish means for locking seid nut three more times.

In addition to the ebove, the edges of the washer,

forniedhy the intera-i slit, to the eorners of said nut, and thereby enable sziid washer to beyused twice more.

From the foregoing description it will be seen that 4 eneh washer is cnpnbie of beingused to look two nuts nine times, even though the prut turned up each time should bev broken oi when `bent down; but as, ou the contmry, the material employed, whether iron or copper, Vcould be bent upward 'and straightened out many itimes before breaking, the number of applications of whichsaid washer is capable would be largely in excessof that stated.

Having thus fully set forth the nature and merits of my invention,

What I claim ae new, :md'esire to secure by Lters Patent, is

Lhe washer D, ior locking nuts, when constructed subs-tn ntinliy as described', and for the purpose set forth. lu tlwthnony that I claim the foregoing, I have here# unto-set my lmnd, this 30th day f April, `1869.

` Witnesses: HARVEY MCCOTVN.

Son McCows, OAnoLni'A. MCGOWN. 

